Register-operating device



Jan.

J. H. SHEATS REGISTER OPERATING DEVICE Filed March 30, 1923 2 SheetswSheet 2 anomto'o Guam:

Patented Jan. 25, 1927.

UNITED STATES PATENT OFFICE.

JOHN H. SHEATS, 0F DAYTON, OHIO, ASSIGNOR T0 OHMER FARE REGISTERCOMPANY, OF DAYTON, OHIO, A CORPORATION OF NEW YORK.

REGISTER-OPERATING DEVICE.

Application filed March 80, 1923. Serial No. 628,786.

This invention relates to a register operating device, and is shownv asapplied to fare registers of the type described in the patents ()hmer etal. 694.322, February .25, 1902,

and Ohmer etal. 715,129, December 2, 1902..

" counter designed to indicate the total number of fares of all classeswhich have been collected since the said counter has been reset. In thismachine the counter to be actuated was first selected by the conductor,then said counter was actuated through operations carried out by theactuation of a separate device.

One object of the present invention is to provide pneumatic .means foroperatin such a register as shown in the patent cite A further object ofthe invention is to provide a pneumatic device associated with each ofthe several units or counters of the fare register and adapted toactuate said unit through a member already in use in the register andwithout any alteration of the register proper whatever.

A further object of the invention is to provide means whereby theselecting of the register to be actuated and the actual registeringoperation are carried out by the conductor as one and the sameoperation.

A further object of the invention is to provide, in a pneumatic registeroperating device, means by which the relief of the pressure in one partof the pneumatic systern effects operation of the register.

A further object of the invention is to I provide means associated withthe register whereby any pneumatic device which has been displaced frominitial position cannot be restored to initial position until theactuation of the register is completed.

A further object of the invention is to provide pneumatic means foractuating several units of a multiple unit register, and means wherebywhen any pneumatic device is displaced, all others are locked in initialposition until the device displaced is restored to initial position.

A further object of the invention is to provide, in a register actuatingdevice, a balanced fluid pressure actuated valve and means under thecontrol of the conductor, a single operation of which displaces saidvalve and restores it to its initial position.

In the drawings:

Figure 1 represents a rear elevation of a register operating deviceaccording to my invention applied to a four unit register that is, aregister adapted to receive and register separately four differentclasses of fares.

Figure 2 is a diagrainmatical showing of the conductors valve.

Figure 3 is a section through an operating cylinder and its valve chest,the register actuating slides being broken away to show the pistonlocking device.

Figure 4 is an end elevation partly in section showing the pistonlocking device in effective position.

Figure 5 is an enlarged detail showing a pressure reducing valve inactuated position. a

The several counters or units of the re ister are actuated by means ofslides 8, eac 1 of which has integral therewith a lug 9 through whichthe slide is operated in the manner to be hereinafter described. The wayin which movement of these slides actuates the register is fullydescribed in Patent 694,322 and forms no part of the present invention.

- By means (not shown) and contained within the register, thedisplacement of any slide 8 also displaces the universal slide 10, onefunction of which is to insure the restoration of the actuated slide 8to initial position. For this purpose a stout spring 11 is provided. Theuniversal slide 10 is provided with a full stroke ratchet 12 coopcratingwith a full stroke pawl 121.

The pneumatic devices by which the slides 8 are actuated are containedwithin the cylinder block indicated generally by 14. This block containscylinder bores associated with each of the slides 8. Each bore 15contains a piston which is reduced near its upper end as shown at 1'7,and terminates in a head 18. The lug 9 on each of the actuating slides 3is embraced between parts 18 and 16 of the piston associated therewithas shown in Figures 3 and a. A valve chest 19 is associated with eachcylinder 15 and connected therewith by bore :40 and passage 21. Partlywithin each valve chest proper, and partly within the associated bore 20is a compound balanced valve adapted to be actuated by difference in thepressures to which its faces are exposed. Each balanced valve comprisesa head 22 in peripheral contact with the cylindrical wall of its valvechest 19, a valve portion 23 seating a ainst the end of valve chest 19,and a short shank 2% connecting the parts mentioned. with a head 25which is in peripheral contact with the bore 20.

Compressed air or other fluid is supplied to the apparatus through atube connected at 26 (Fig. 1) with the passage 27 (Fig. 3), whichpassage is in communication with each valve chest 19 at the side of head22 adjacent to the passages leading to cylinders 15. It will be seenthat valve 23 with bore 20 forms an intake port for admit-ting air tocylinder 15, which port will be opened when the balanced valve isdisplaced to the right, from the position shown in Figure 3. The exhaustport for cylinder 15 is furnished by passage 28. This port is shown openin Figure 3 and will be closed by head 25 when the balanced valve isdisplaced to the right. Thus the register ill be actuated by theelevation of piston 16, and such piston and the parts moved thereby willbe restored to normal position, when the balanced valve is firstdisplaced to the right and then restored to the position shown in Figure3. For the purpose of effecting this operation, the following devicesare provided.

A small opening 30 through operating head 22 of the balanced valveadmits air to the end of valve chest 19 opposite its connection to thecylinder, and to the source of air supply. This end oi the valve chestis connected by tube 31 to keys or push buttons 32 operated by theconductor, it being remembered that there is one such valve for eachclass or" fares to be registered. The depression of each push button 32effects a reduction of pressure in the tube 31 associated therewith.These push button valves may take a variety of forms; the particularform selected for purpose of illustration (Fig. 5) comprises acounter-bored stem which fits into an opening in the block 322. lVhenthe push button is depressed a lateral perforation 323 in the wall ofthe counterin cylinder 15.

bore 324 registers with an opening 325 in the block 322, thus permittingthe escape of air from the tube 31, and reducing the pressure therein.This reduction of pressure will cause the balanced valve to move to theright, opening the intake port- 20 and closing the exhaust port 28, thusactuating piston 16. The release of the button closes the valve whichits depression opened and the pressure in tube 31 and the end of valvechest 19 adjacentthereto is quickly restored by the passage of airthrough the small opening 30. The end of head 25 opposite the valvechest is exposed to atmospheric pressure by opening 255 3) through thewall of cylinder block let. The end of head 25 adjacent the valve chest19 is at this time exposed to the pressure of the co1npressed air withinsaid valve chest and with- Thus the pressures on the right hand faces ofthe compound valve are greater than on its left hand faces and saidvalve is accordingly moved to the left, closing intake port 20 andopening exhaust port 28. The piston 16 is then restored to initialposition by its own weight assisted by the tension of spring 11.

Devices are provided for insuring that a second piston cannot beelevated from its initial position after any piston has been displacedand prior to its return to initial position. Devices are also providedfor insuring that a slide 8, which has been displaced by its piston mustexecute a full forward stroke before such piston can be restored to itsinitial position. To this end a locking bar 33, comprising ahorizontally extending flange 331 is pivotally supported by ears 34cintegral therewith on a rod extending through said ears and through theupper ends of arms 36 attached by screws 37 to the cylinder block 14.The locking plate 33 is pressed toward the path of movement of thepistons by spring 38 attached thereto and engaging a stud 39 on thecylinder block. Movement of plate 33 toward the pistons is limited bythe engagement of reduced end 332 with one of the arms 36. Attached to,or integral with the plate 33, is an arm 40 having a downwardlyextending cam engaging portion 11. The universal slide 10 is providedwith a lug or cam a2 which, when the slide is in its initial position,engages the arm 41 and retains locking plate 33 out of the path of thepiston against the tension of its spring 38. It will be recalled thatuniversal slide 10 is displaced with any of the individual slides 8, sothat upon the displacement of any slide by its piston, the flange 331swings beneath the displaced piston and above the remaining pistons,thus blocking the remaining pistons against movement until the flange331 is withdrawn by the return of universal slide 10 to its initialposition. The full stroke device 12 prevents the return of universalslide 10 until such slide has completed a full forward stroke. Thus, anyincomplete actuation of any unit of the register is prevented, and anydisplaced piston is pre vented by flange 331 from returning to normalposition until its slide 8, and'consequently the universal slide 10, hasperformed a full forward stroke.

The operation of the device may be summarized as follows: The depressionby the conductor of any valve 32, reduces the pressure on the right handside (Fig. 3) of valve head 22 thus displacing the compound valve andadmitting air to cylinder 15. The piston 16 thus displaced actuates thedesired unit of the register through its engagement with lug 9 on slide8. Upon the release of the button depressed by the conductor, airpassing through. opening 30 equalizes the pressure on opposite sides ofvalve head 22 and the difference in pressure on opposite sides of head25 moves the balanced valve to the left in Figure 3 thus closing theintake and. opening the exhaust from cylinder 15 and restoring thedisplaced piston to initial position. Incomplete actuation of any unitofthe register or displacement of any second piston after one piston hasbeen actuated, is prevented by means of locking bar 33 which is undercontrol of cam 42 on universal slide 10, which slide is caused by meanswithin the register to move within any of the slides 8.

The invention is not to be considered as limited to the specificembodiments shown in the drawings and herein fully described, but is tobe considered as extending to any modifications thereof which fallwithin the scope of the appended claims.

I claim:

1. Fluid pressure actuating means for a register comprising a balancedvalve actuated by relief of the pressure in a part of the fluid pressuresystem.

2. A register operating device comprising pneumatic means adapted toengage a part of said register. a balanced valve for connecting saidpneumatic means to a source of fluid supply and a manually actuateddevice for controlling said balanced valve.

3. A register operating device comprising fluid operated means adaptedto engage a part of said register, means for connecting said fluidoperated means to a source of fluid supply, a manually actuated pressurereducing valve, and means whereby actuation of said valve controls saidconnecting means.

4. A register operating device comprising fluid operated means adaptedto engage said register, a source of fluid supply, a balanced valvenormally closing said fluid operated means from said source of fluidsupply, a chamber containing said balanced valve in communication withsaid source of fluid supply, a tube connected to said chamber, and meansfor relieving the pressure in said tube, whereby said balanced valve isdisplaced to connect said fluid operated means with said source of fluidsupply.

5. A register operating device comprising a piston adapted to engage andactuate a part of said register, a cylinder containing said piston, anormally open exhaust port for said cylinder, a normally closed intakeport for said cylinder; a valve comprising a cylindrical portion adaptedto close said exhaust port, a disc portion normally closing said intakeport, and a circular head operable within a cylindrical chamber, asource of fluid supply in communication with said chamber, means tendingto equalize the pressure on opposite sides of said head, and a reliefvalve for reducing pressure on one side of said head, thereby displacingsaid valve to close said exhaust port and open said. intake port.

6. A register operating device comprising a piston adapted to engage andactuate a part of said register, a cylinder containing said piston,intake and exhaust ports for said cylinder, a fluid pressure operatedvalve for controlling said ports, and a manually operated valve forcontrolling the fluid pressure to operate said fluid pressure operatedvalve.

7. In a register operating device, an actuating piston, a cylindertherefor having an intake port and an exhaust port, eylindrical valvechest, a source of fluid supply in connnunication with said valve chestnear one end thereof, a fluid pressure operated valve in said valvechest having a part normally closing said intake port, a part adapted toclose said exhaust port, and a. head contacting with the cylindricalwall of said valve chest, a tube connected with the end of said valvechest opposite said connection to the source of fluid supply, a manuallyoperated valve for opening this tube to the atmosphere thus reducing thepressure there in, whereby said fluid pressure operated valve isdisplaced to open said intake port and close said exhaust port, a smallopening in said valve head adapted to equalize pressure on oppositesides of said head when said manually operated valve is closed, wherebypressure on said exhaust closing part moves said valve to normalposition.

8. In a multiple unit register actuating mechanism comprising a fluidoperated piston associated with each unit of the register, meanseffective on the initial movement of piston for preventing movement ofany other piston prior to the completion of the registering operationthus initiated, and the return of the parts displaced to normalposition.

' 9. A multiple unit register actuating device comprising an operatingslide for each unit of said register, a universal slide actuated onmovement of any one of the operating slides, a fluid operated pistonassociated with each of said operating slides and effective to actuatethe same, a movable bar effective in one position to preventdisplacement of said pistons from initial position, and means effectiveon the initial displacement of said universal slide to move said barinto effective position.

10. In a multiple unit register actuating mechanism comprising a fluidpressure actuated device associated with each unit of said register,means comprising an element actuated by movement of each of said fluidpres sure actuated devices for preventing displacement of any of saiddevices during the displacement of any other such device.

11. A register operating device comprising a manually controlled reliefvalve, and afluid pressure operated valve adapted to be displaced onopening said relief valve and restored on closing said relief valve.

12. Means for actuating a register by fluid pressure comprising acylindrical valve chest, a compound valve in said valve chest having anoperating head, and two port c1osing sections, said valve being adaptedto be displaced in one direction when opposite sides of said operatinghead are exposed to unequal pressure, and in the reverse direction whenopposite sides of said head are exposed to equal pressure.

13. Means for actuating a register by fluid pressure comprising acylindrical valve chest, a compound valve in said valve chest having anoperating head, and two port closing sections, said valve being adaptedto be displaced in one direction when opposite sides of said operatinghead are exposed to unequal pressure, and in the reverse di rection whenopposite sides of said head are exposed to equal pressure, a manuallyoperated means for reducing the pressure on one side of said head, andautomatic means for equalizing pressures on opposite sides of said head.effective on release of said manually operated means.

1%. In a register operating device, in combination, a tube normallycontaining fluid under pressure, a valve adapted when depressed torelieve the pressure in said tube, and means whereby such relief ofpres'ure actuates the register, said means comp g a fluid pressureoperated valve, a cylinder having ports closed and opened by said valve,and a register actuating piston in said cylinder.

15. In a register operating device, in combination, a tube normallycontaining fluid under pressure, a valve adapted when depressed torelieve the pressure in said tube and means whereby such relief ofpressure aetuates the register, said means com rising a cylindercontaining a register actuating piston, and having intake and exhaustports, a compound fluid pressure operated valve having a sectionnormally closing said intake port, a second section adapted to closesaid exhaust port, and an operating head, a valve chest containing saidoperating head and connected on one side of said head to said tube andon the opposite side of said head to a source of fluid supply, wherebyrelief of pressure in said tube displaces said piston to close saidexhaust port and open said intake port.

16. In a register operating device, in combination, a tube normallycontainin fluid under pressure, a pushbutton valve adapted whendepressed to relieve the pressure in said tube and means whereby suchrelief of pressure actuates the register, said means comprising acylinder containing a register actuating piston, and having intake andexhaust ports, a compound fluid pressure operated valve having a sectionnormally closing said intake port, a second section adapted to closesaid exhaust port, and an operating head, a valve chest containing saidoperating head, and connected on one side of said head to said tube andon the opposite side of said head to a source of fluid supply, wherebyrelief of pressure in said tube displaces said piston to close saidexhaust port and open said intake port, and means whereby releasing saidpushbutton restores said compound valve to normal position.

17'. In a register operating device, in combination, a tube normallycontaining fluid under pressure, a pushbutton valve adapted whendepressed to relieve the pressure in said tube and means whereby suchrelief of pressure actuates the register, said means comprising acylinder containing a register actuating piston, and having intake andexhaust ports and an operating head, a valve chest containing saidoperating head, and connected on one side of said head to said tube andon the opposite side of said head to a source of fluid supply, wherebyrelief of pressure in said tube displaces said piston to close saidexhaust portand open said intake port, a small opening in said operatinghead permitting relatively slow passage of fluid therethru, whereby onreleasing said pushbutton pressure is restored in said tube and saidcompound valve restored to normal position.

18. A multiple unit register actuating device comprising a fluidpressure piston associated with each unit of said register, a fluidpressure operated valve associated with each piston, a manually operatedpressure relief valve associated with each fluid pressure operatedvalve. and a device for preventing displacement of any piston frominitial position by its actuating means While another piston isdisplaced from initial position.

19. A register operating device col'npi'ising, in combination a pressureactuated valve, a pushbutton valve for controlling pressure to actuatesaid pressure actuated valve, a cylinder having intake and exhaust portscontrolled by said pressure actuated valve, a piston Within saidcylinder, means whereby said piston actuates said register, and meansfor preventing return of said piston to initial position until theregister has been completely actuated.

JOHN H. SHEATS.

